Definition of lady-bug:
(n) :
(polite or used by children) A woman: an adult female human.
(n) :
A woman of breeding or higher class, a woman of authority.
(n) :
The feminine of lord.
(n) :
A title for someone married to a lord or gentleman.
(n) :
A title that can be used instead of the formal terms of marchioness, countess, viscountess, or baroness.
(n) :
(in the plural) A polite reference or form of address to women.